Vehicle-brake.



W. SAY.

VEHICLE BRAKE.

APPLIGATIONTILBD 1130.26.1913.

Patented Aug. 2,5, 1914.

- annexed 'drawings in which.:-,-

I line of the wheel or wheels to be braked, and

'its operating appliances, the brake being bearing or other fixed part of a motor vehi- Y The barcelone 1e, ie, are' at the @nds of the rod-5 and are i-n'proximi'ty to drums 13,

UNITED srares rarnnr orrrcn.

WILLIAM SAY, OF L ONDON, ENGLAND.

VEHICLBBRAKE Application filed December 26 To all w'lzom'z't may concm: v Be it known that I, 1iVILLIM SAY, a subject yof the. King of Great Britain, residing at London,` England, have invented certain new and useful Improvements in Vehicle- Brakes, of which the following is a specifica'- tion.

' The object of my invention is to construct in an improved manner an eiicient automatic brake yfor self propelled and other vcliir-les, so that `on an obstacle striking an appliance connected with the brake, such brake will be released and automatically act upon the vehicle, the braking being'assisted by the onward movement of the Wheel or wheels. ,i

invention will be clearly understood from the following description aided by the Figure 1 is a side elevation of aportion of the chassis and one' of the driving Wheels of a motor vehicle and showing the brake and 01T. Fig. 2` is a part sectional side elevation of the brake drum, the eccentric, and the brake and its releasing member, the brake being on. Fig. 3 is a plan of a portion of Fig. 1.

v According to the invention, there is connected to the fixed axle 1, or easement or cle,.a pair of disks 2, eccentric to the' axial around each of these disks is positioned a ring 3 having an `arm 4 projecting at an angle thereto. To said arms a rod 5" is connected by screws 6, wherebyt its position may' be adjusted relative to a lhook or hooksI 7 to permit proper lengagement of the latter with; .said rod, ashereafterdescribed; The hooks 7 are connected to a shaft 8 journaledin the chassis 9, and suclrsha'ft.y 8 is connected by lrods 10, 10, to an emergency rod or frame l1, which is also pvoted to the chassis 9 below the rods 10 and vwhich nearly touches the?"Y ground. f"

13, on the wheels 14,l 14. or, it may be, to the rims 'or tires of the wheels thems lves.

The frame 11 may be in the form of a plain or curved grid. so as to c/zitch up obstacle, say a person), which strikes same. In ordinary use, the fra'me 11 and the/hooks 7 hang with the hooks 7 engaging the rod 5 Specification of Letters Patenta Patented i Aug.. 25, rara. 1913. Serial No. 808,887.

' `and `holding the brake blocks 12 clear of the :drums 13, so that the wheels 14 run free, but

should the framell be struck by any ob-` stacle, it will rock about its pivots and pulling forwardly the rods 10, will release said hooks from ,Y engagement with said rod, whereupon the latter will drop by its own weight, carrying with it the rings 3, which are thus caused to move around the disks 2 drawing the brakeblocks toward and into frictional engagement with the drums 13, the disks 2 `acting upon said lrings to draw the brake blocks still closer to the said drums and thus efficiently brake the wheels. The brake can be easilyreleased by back-v in@ the vehicle or lifting the arms 4, inr

order'to enable the rode to rengage the yIt' required I maypro-vide the top of the vframe 11 above its pivotal connection with a rod or lever extending upward to near the driver s0 that lthe hooks 7 can be released byhand.v What I" do claim as my invention' and desire to secure b` Letters Patent is f f 11A vehicle rake comprisinga'n eccentric adapted for attachment tothe axle of the, vehicle;-a. ring'encircling said eccentric and provided-with'a radial arm; a cross-rod connected to said arm and provided with, a pairr of brake blocks; a pivotally-mounted, depending hookpreleasably engaged with/said rod, for normally holding the latter elevated and its brake blocks in inoperativeposition;

and means for rocking said hookto release the same. y, j

2. A. vehicle brake comprising an eccentric adapted for attachment to/ the axle of the .vehicle; a ring encircling said eccentric and v providedv with a radial'arm; a cross-rod con- 'ref nected to said arm and provided with a pair of brake blocks'gfashaft mounted in the chassis of said/"'vehicle; a pair of vertical members connected intermediate their ends to said shaft and having hooked lowerends releasably engaged with saidvrod, for normally/holding the latter elevated 'and its brake blocks in inoperative position; a pair of"'forwardly-extending rods pivotally con- /nected at their rear ends to the upper ends of said hooked members; and a rocking frame pivoted to said chassis and connected to the front ends of the last-named rods, for releasing the said hooked members from such engagement.

3. A vehicle brake Comprising' an eccentric 'adapted for attachment to the axle of the vehicle; a ring encircling said eccentric and provided with a radial arm; a cross-rod oonnectecl to Said 'arm and provided with a pair of brake blocks; a member releasably en- ;aged with said rod for normally holding the latter elevated, and its brake blocks in inoperative' position; and means for tripping said member, to release the same from 10 such engagement.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witmesses.

WILLIAM SAY.

-lVitnesses WM. O. BROWN,

FREDK. HUTCHINS. 

